Mud guard



FIG. 1 is a perspective view of a mud guard showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a front elevational view thereof;

FIG. 7 is a rear elevational view thereof; and,

FIG. 8 is a front view thereof illustrative of the use of the mud guard.

The portions shown in broken lines are included to show environment and form no part of the claimed design. 

The ornamental design for a mud guard, as shown and described. 